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Thomas Mine

Past Producer in Pershing county in Nevada, United States with commodity Iron
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Reserves and resources
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10103888
MRDS ID M060443
Record type Site
Current site name Thomas Mine
Related records 10174830

Geographic coordinates

Geographic coordinates: -118.18958, 40.08879 (WGS84)
Elevation 1286
Relative position 30 MILES EAST OF LOVELOCK.

Site location context

Political divisions (FIPS codes)

Pershing(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Buena Vista Hills North(quadrangle 1:24,000 scale)

Lovelock(quadrangle 1:100,000 scale)

Lovelock(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Carson Desert(hydrologic unit)

Carson(hydrologic accounting unit)

Central Lahontan(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Pershing

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 026N 034E 29 SW OF SW Nevada

Comments on the location information

  • IMMEDIATELY SOUTH OF COUNTY ROAD INTERSECTION NORTH OF BUENA VISTA HILLS. . INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Hematite Ore
Magnetite Ore
Chlorite Gangue

Alteration

  • (Local) Deuteric

Mineral occurrence model information

Model code 62
USGS model code 18d
Deposit model name Skarn Fe

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -118.18958, 40.08879
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Large N-Trending Fault Zone; Pre-Mineral And Post-Mineral Faults

Ore body information

  • General form TABULAR
    Strike N-S
    Dip STEEP
    Length 1005.84M
    Width 12.19M
    Depth to top 0M
    Depth to bottom 91.44M

Controls for ore emplacement

  • 4 To 5 Nearly Parallel Faults

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1942
Year of last production 1967

Mining district

District name Mineral Basin District

Land status

Ownership category Private

Comments on the production information

  • PROBABLY CLOSE TO A MILLION TONS TOTAL PRODUCTION FROM THIS MINE. TABLE IN JOHNSON (P.70) STATES 1963-67 PRODUCTION WAS "MORE THAN 500,000 TONS" AND FIGURES FOR OTHER PRODUCTION PEROIDS ARE PREFACED BY "ABOUT."

Reserves and resources

  • Type In-situ
    Estimate year 1977
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 59 wt-pct Iron Major 1977
  • Type Dump
    Estimate year 1977
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 33.4 wt-pct Iron Major 1977

Workings at the site

  • Type of workings Surface
    Length 365.76M
    Width 60.96M
    Overall depth 45.72M
    Overall length 365.76M
    Overall width 60.96M

Comments on the workings information

  • OPEN PIT.

Comments on development

  • FIRST MINED BY AMERICAN ORE CO. FOR SCRAP IRON.

Reference information

Bibliographic references

  • Deposit

    JOHNSON, M. G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY, NEVADA: NBMG BULL. 89, P. 67-70.

  • Deposit

    MOORE, L., 1971, ECONOMIC EVALUATION OF CALIFORNIA-NEVADA IRON RESOUCES AND IRON ORE MARKETS: USBM INFORMATION CIRC. 8511.

  • Deposit

    REEVES, R.G., AND KRAL, V.E., 1955, IRON ORE DEPOSITS OF NEVADA; PART A, GEOLOGY AND IRONRE DEPOSITS OF THE BUENA VISTA HILLS, CHURCHILL AND PERSHING COUNTIES, NEVADA: NBMG BULL. 53.

  • Deposit

    BONHAM, H.F., JR., 1985, FIELD EXAMINATION: NBMG UNPUBLISHED REPORT (TINGLEY) FILES.

  • Deposit

    STAFF, 1985, A MINERAL INVENTORY OF THE PARADISE-DENIO AND SONOMA-GERLACH RESOURCE AREAS, WINNEMUCCA DISTRICT, NEVADA: NBMG OPEN FILE REPORT 85-3.

  • Production

    JOHNSON (1977), P. 70.

General comments

Subject category Comment text
Deposit MAGNETITE-HEMATITE VEINS FOUND IN 150- TO 200-FOOT WIDE NORTH-TRENDING FAULT ZONE, TRACEABLE ON SURFACE FOR 2000 FEET AND 1300 FEET MORE (SOUTH) BY MAGNETIC SURVEYING DONE IN 1952.; MODEL NAME COULD ALSO BE: VOLCANIC-HOSTED MAGNETITE.
Deposit THIS RECORD HAS BEEN MERGED WITH M242671, WHICH HAS BEEN DELETED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1986 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology
Updater 01-DEC-1988 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology
Updater 01-APR-1993 Phinisey, J. D. (Marcus, S.) U.S. Geological Survey
Updater 01-SEP-1993 Humphries, S. E. (Marcus, S.) U.S. Geological Survey
Updater 01-SEP-1994 Li, Zhiping (Peters, S.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Maps centered on this site

Authoritative Nevada resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.